How did the United States benefit from World War I?

The United States was the main victor of WWI, even though it only joined the war in April 1917 and could not commit any substantial forces until even later that year.  Before the war, America made loans to the Allied powers, especially Britain, France, and Russia.  America also sold munitions to the Allies--all of this made manufacturers in this country quite wealthy.  The war was good for factory workers as well, as the average wages of munition workers were higher than the soldiers received.  After the war, America was a creditor nation; furthermore, there was a strong need in Europe for American goods and foodstuffs since a large portion of the European workforce had been killed in the war.  After the war, American businesses looked to expand overseas with multinational corporations and to extract natural resources through contracts with governments who could no longer afford to exploit their own colonies.